/* Copyright (C) 2007-2008  klevgert  http://code.google.com/p/db4o-netbeans/

This file is part of the db4o-netbeans module suite.

db4o-netbeans is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation.
 
db4o-netbeans is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */

package com.db4o.nb.util;

import com.db4o.ObjectContainer;
import com.db4o.reflect.ReflectClass;
import com.db4o.reflect.ReflectField;
import java.util.ArrayList;
import java.util.List;

/**
 *
 * @author klevgert
 */
public class Db4oReflectorUtil {
  
  /** Creates a new instance of Db4oReflectorUtil */
  public Db4oReflectorUtil() {
  }
  
  public static List getDeclaredFields(String clsName, ObjectContainer oc) {
      
    ReflectClass rc = oc.ext().reflector().forName(clsName);
    ReflectField[] rfs = rc.getDeclaredFields();
    ArrayList names = new ArrayList();
    for (int i=0; i<rfs.length; i++) {
      names.add(rfs[i].getName());
    }
    return names;
  }
  
  public static String getDeclaredFieldType(String fldName, String clsName, ObjectContainer oc) {
      
    ReflectClass rc = oc.ext().reflector().forName(clsName);
    ReflectField rf = rc.getDeclaredField(fldName);
    
    String type = rf.getFieldType().getName();
    return type;
  }
 
  /**
   * converts a stringified field value to its designated type.
   * @param fieldValue   field value to convert
   * @param field        reflected field meta data
   * @return converted field value 
   */
  public static Object getTypeSafeFieldValue(String fieldValue, ReflectField field) {

    Object convertedValue = null;

    ReflectClass rc = field.getFieldType();
    if( rc.getName().equals("java.lang.Integer") ) {
            convertedValue = new Integer(fieldValue);
    } else if( rc.getName().equals("java.lang.Long") ) {
            convertedValue = new Long(fieldValue);
    } else if( rc.getName().equals("java.lang.Double") ) {
            convertedValue = new Double(fieldValue);
    } else if( rc.getName().equals("java.lang.Float") ) {
            convertedValue = new Float(fieldValue);
    } else {
            convertedValue = fieldValue;
    }
    return convertedValue;
  }
  
}
